Changes

|faction = [[AR Team]], [[Griffin & Kryuger]], <div class="{{spoiler">|[[DEFY]]</div>}}

|artist = {{artist name|LIN+}}(Original Artist);<br/>{{artist name|STAR影法师}} (Top Hat Drifting to the Flowers);<br/>{{artist name|暖森}} (Breeze on a Spring Day);<br/>{{artist name|umo}} (Owl Latte)|fullname = Spikes Tactical 10th Anniversary AR-15, Spikes Tactical Pipe Hitters SBR (Mod 3Secondary Armament)

| weaponinfo =An The AR-15 variant refers to is a lightweight, intermediate cartridge magazine-fed, air-cooled semi-automatic rifle with a rotating -lock bolt, actuated by direct impingement gas-operation or long/short stroke piston operation, and chambered for an intermediate caliber cartridge. The term "AR-15" signifies stands for "Armalite rifle, design 15".The trademark "AR15" or "AR-15" is registered to Colt, which requires the term to be used only to refer to their products. Colt uses "AR-15" for its semi-automatic civilian rifles , and thus many use the term only for Colt -made AR-15s 15 rifles and clones made by other manufacturers.

Other Many other manufacturers make AR-15 clones and variants marketed under separate designations, although these are frequently referred to as AR-15s. The prototype AR-15 rifle was designed by American arms designer Eugene Stoner, who at the time was working for the ArmaLite as company. It was designed to be a selective fire weapon for military purposes, and was meant to be an improvement on Stoner's earlier rifle, the AR-10. Armalite sold the AR-15 design to Colt due to financial difficulties. After some modifications, the rifle eventually became the US Army's M16 rifle. A civilian version was marketed as the Colt AR-15 rifle.<ref name="AR15 wiki">[[wikipedia:List of Colt AR-15 variants|Wikipedia entry on AR-15 variantvariants]]</ref>.

Because AR-15 receivers and parts are widely manufactured, the weapon is considered extremely modular and adaptable to a variety of different functions, uses, and firing performances. Various receivers and barrels in a wide array of calibers allow the AR-15 to function at many different ranges and in a number of varying roles. Many aftermarket parts can provide the rifle with a tactical feel, with options ranging from picatinny rails to MLOK allowing different accessories to be mounted on the rifle.

| design =ST AR-15 is designed by the Concept Design Manager of MICA Team , LIN+, . LIN+ commented on AR-15's design in the official artbook of for Girls Frontline<ref name="artbook">{{cite |ab1|197-198}}</ref>:

All four members of AR Team are all sister guns derived from the original AR-15 designed by Eugene Stoner, when . When it comes came to designing her, a lot of reference were made to M4A1, whose design had already been finalized at the time by UmiNeko. Various design features such as a selectively dyed side fringe, sleeve logo, theme colour combination color palette, and various other elements. （AR小队的四个人都是由尤金·斯通纳设计的AR15原型发展而来的姐妹枪，所以设计的时候也参考了海猫当时已经完成的M4A1，选取了共同的挑染，袖标，和标识色等元素。）

At the same time , the costume leans more towards civic, a civilian feel. I chose outfits things such as leather boots and skirt dressskirts, various common clothing combinations reflects reflecting her status background as a civilian firearm background.（同时在服装上更偏向日常，选用了皮鞋和连衣裙等比较常见的搭配，以贴合AR15民用枪支的属性。）

Considering AR15 AR-15 is a more outgoing girl, her early drafts had more fashionable /flamboyant clothing designs. However , considering her role within the AR Team and the fact that excessively complex outfits can lead to lacking a lack of deviated deviation in future artworks, her outfit was simplified in for the finalized design.（早期设定可以看出，以前的AR15性格上是比较活泼的，服装也比较复杂，后来考虑到小队里的角色定位，以及服装太复杂可能会影响同人创作而做了简化。）

She's The rifle she uses is based off the Spikes Tactical 10th anniversary AR-15 with . It sports a 16" barrel, albeit with and a longer hang-guard. With the modification 3 After receiving her neural upgrade, ST AR-15's main rifle's has its receiver group had been changed to a MEGA ARMS -made .300 BLK compatible receiver. She also gained a sidearm with the upgrade, her . Her secondary armament is the Spikes Tactical Pipe Hitters 8" barrel Short Barrel Rifle , also modified to chamber .300 BLK.

|reward= Rewarded to players after clearing chapter 3-6 for the first time. This {{doll name|ST AR-15|AR|4}} will be Lv.30 40 and at 3x Dummy Links.

|costume2 = [Digimind Neural Upgrade]|costume3 = Dreamscape Prisoner|costume4 = Top Hat Drifting to the Flowers|costume5 = Breeze on a Spring Day|costume6 = Summer Afternoon Leisure|costume7 = Owl Latte

File:ST AR-15_costume2_S.png|<div class="{{spoiler">Digimind |Neural Upgrade</div>}}File:ST AR-15_costume2.png|<div class="{{spoiler">Digimind |Neural Upgrade full artwork</div>}}File:ST AR-15_costume2_D.png|<div class="{{spoiler">Digimind |Neural Upgrade full damaged artwork</div>}}

File:ST AR-15 Mod 3 character sheet (doll).png|<div class="{{spoiler">|Modification 3 character design sheet produced by LIN+ (Doll)<ref name="booru">[https://danbooru.donmai.us/posts/3127557 Design image no longer available on artist Pixiv, image retrieved from Danbooru and separated into sections]</ref></div>}}File:ST AR-15 Mod 3 character sheet (weapon).png|<div class="{{spoiler">|Modification 3 character design sheet produced by LIN+ (Weapon)<ref name="booru"></ref></div>}}File:ST AR-15 Mod 3 character sheet (ending).png|<div class="{{spoiler">|Modification 3 character design sheet produced by LIN+ (Ending)<ref name="booru"></ref></div>}}File:DEFY Wallpaper by LIN+.jpg|<div class="{{spoiler">|ST AR-15 centered DEFY wallpaper produced by LIN+<ref name="pixiv">[https://www.pixiv.net/member_illust.php?mode=medium&illust_id=68794990 Image retrieved from artist Pixiv]</ref></div>}}File:Login Wallpaper 2019 April Fools.jpeg|2019 CN Servers [[April 1st Fools]] login wallpaperFile:Shattered Connexion Login Wallpaper.png|<div class="{{spoiler">|[[Shattered Connexion]] stage 1 login wallpaper Illustrated by 藤原海藻</div>}}File:Shattered Connexion Login Wallpaper2.png|<div class="{{spoiler">|[[Shattered Connexion]] stage 2 login wallpaper Illustrated by SWAV</div>Paindude}}File:Shattered Connexion Login Wallpaper3.png|<div class="{{spoiler">|[[Shattered Connexion]] stage 3 login wallpaper Illustrated by SWAV</div>}}File:Sleepwalking in Rabbit Wonderland Login Wallpaper.png|"Sleepwalking in Rabbit Wonderland" Login wallpaper illustrated by STAR影法师File:Banquet Sonata Login Wallpaper.png|"Banquet Sonata" Login wallpaper illustrated by 薯子ImokoFile:Losin Screen June 2023.jpg|June 2023 Login Screen.File:Login Screen Holidays 2023.png|Holidays 2023 Login Screen.File:Login Screen Holidays 2023 JP.png|Holidays 2023 Login Screen (JP server).File:Maiden's Afternoon Prelude Login Wallpaper.jpg|"Maiden's Afternoon Prelude" Login wallpaper illustrated by ???File:Girls Frontline Orchestra 2018 promotion poster.jpg|[[Girls' Frontline Concerts|Girls Frontline Orchestra 2018 ]] promotion poster, character art illustrated by Duoyuanjun

| trivia =*ST AR-15 is the first and only T-Doll to switch the weapon she represents, from the 10th Anniversary AR-15 to the Pipe Hitters SBR. Alternatively it can be viewed as ST AR-15 as a T-Doll represents all the AR-15 models produced by company Spike's Tactical.*ST AR-15 and {{doll name|M4 SOPMOD II|AR|4}} are the only two dolls able to equip two accessories accessory-type equipment pieces at the same time. *She is For 4 years, she was the only member of the AR Team that has had an additional costumeoutside of her {{spoiler|Neural Upgrade}}. This is no longer the case with the introduction of the "Sleepwalking in Rabbit Wonderland" costume sets and the 4th anniversary procurement pool "Banquet Sonata" for the CN server.**Her Summer Afternoon Leisure costume is the first to be unlocked through the Battle Pass system.*She is the only automatic rifle T-Doll in the AR Team to use the .300 BLK cartridge. The cartridge was designed in response to military demand for AR-15s using a shortened 7.62mm round, without compromising on magazine capacity or reliability. The .300 BLK is capable of fitting inside 5.56x45mm STANAG magazines with no issues, although the gun itself needs to have it's barrel switched to the correct bore size in order to fire the cartridge without destroying it in the process.*During [[Singularity]] ST AR-15 was an obtainable drop from the hidden mission of E2 "Survivor" (CN/TW/KR Only), as a mean means of providing a 'second chance' for players who ignored all in -game warnings and retired their copy of ST AR-15. Though players can only obtain her through this way once, and those who already have a unit of ST AR-15 in their arsenal cannot obtain a duplicate through this meanway. With the introduction of the index recovery system, this kind of looting system will probably never occure occur again.*Despite the fact that she is both named after and is using a Spikes Tactical -made AR-15, in her formation quote she still addresses herself as 'Colt AR-15'. This is likely a mistake.*In the [[Girls' Frontline: Doll's Song|official Chinese manhua]], it is revealed that ST AR-15 wears a harness under her coat that stores pistol magazines.*The placement of her angled foregrip would likely make handling the weapon awkward as AR-15's arms may be too short to properly maintain a firing stance at the distance her foregrip is set to. It does look pretty cool, though.**She doesnThe forward placement of the foregrip is likely a reference to MAGPUL't actually grip s Art of the Carbine series starring former special forces members Chris Costa and Travis Haley, in which they teach the viewers the c-clamp and thumb-over-bore shooting techniques that eventually popularized the "tacticool" tropes in pop culture. Said video would go on to become a massive influence on modern gun culture--most notably in America and Japan. The technique involved gripping the handguard of the rifle as far forward as possible in order to maximize recoil management and allow the user to more quickly engage multiple targets by increasing their ability to drive the rifle from target to target. While the technique is not as widespread as it once used to be, some variations and fundamentals of it are still utilized in modern shooting stances and techniques by both high level competition shooters and special operations units throughout the world. The angled foregrip ST AR-15 uses on any her rifle was originally designed by Magpul specifically to improve the operator's ability to utilize c-clamp and thumb-over-bore techniques more effectively while shooting.**A rough estimate of ST AR-15's height based on the barrel length of her rifle would put her at around roughly 5'0 or 152 cm. This would make attempting to c-clamp the rifle at the position of the angled foregrip with someone of her chibi firing animationsstature quite difficult.*In the opening scene of the [[Chibi Dolls Theater|Girls' Frontline: Healing Chapter anime]], ST AR-15 is shown firing her weapon in automatic fire. This is impossible as the While officially a civilian AR-15 is the civilian variant not capable of the rifle and automatic fire, it is incapable of the entirely possible to have it do so by either jury-rigging an automatic fire typically found on trigger sear (which is not recommended, unless one is an experienced gunsmith), or replacing the militaryentire trigger assembly with that of a mil-spec AR-variant M16 and M4 rifles15 platform capable of doing so.**It's is possible that for ST AR-15's RoF skill is a reference to achieve pseudo-automatic fire through the use of a binary trigger modificationor a forced reset trigger, a civilian aftermarket part that which allows for pseudothe AR-15 platform to simulate automatic fire by firing resetting the trigger of the gun as the gun cycles. It is not normally possible to install an auto sear in an additional bullet AR-15 platform as the trigger lower receiver intentionally lacks the compartment to house the auto sear. *The 16-inch barrel that ST AR-15 uses is actually the shortest legal length that a rifle can be configured in for the American civilian market.**The actual length of a AR-15 barrel after the installation of a muzzle device sits at about roughly 17.5 inches.*AR-15 is released by featured on the shootercovers of [[Girls' Frontline Original Soundtrack]].